Well...remember, her face is going to get bigger along with her jaw. So I really wouldn't be concerned with this. And...just don't let an orthodontist see her! My mom got sucked into ortho stuff when I was 9, and he made all sorts of pronouncements and I ended up in braces a couple years later. And once I became an adult, my jaw was bigger than when I was a teen, and now I have room in the back of my jaw that I didn't before. So great I had those teeth pulled and dealt with all that pain, right?
DS is getting his first permanent molar right now, and two teeth are loose, so I've been looking up dentition charts. That first adult molar comes in at the back, then teeth in front of the molars start getting "replaced", and then slowly the back molar comes in, and of course there are also the wisdom teeth which no dentist allows to just stay anymore...
The point is, the mouth's setup is kind of genius, how those molars come in and hold the place for the changes on the way!
So I wouldn't mess with it (and we're not planning on messing with it for DS)!
If you start getting too worried about life without "perfect" teeth, go watch Chuck, and see how incredibly gorgeous the main female star is, despite (or because of) having slightly twisty (and awesome) teeth. I can't imagine her being *that* pretty with teeth that have been "hollywooded", and hope no producer ever talks her into "fixing" them.
I'm sure your girl will be fine. She will grow and her teeth will have room to move around.
the mouth is set up kind of genius like. i will agree with that, but the rest of your post is filled with bad information. you are obviously way out of your league here, and i think you should refrain from commenting on things that you really know nothing about. your advice is poor and potentially damaging for the kid.